ULA to Use Atlas 5 Instead of Vulcan Centaur for USSF-51 Mission Written 21 May 2021
Space News reports that United Launch Alliance said Wednesday that the company will use its Atlas 5 rocket for the USSF-51 mission. The mission was supposed to be “the first national security mission for United Launch Alliance’s Vulcan Centaur rocket,” but the Vulcan has fallen behind schedule. The USSF-51 mission was “awarded to ULA in August 2020 and is scheduled to launch in late 2022.” USSF-51 is a “classified mission for the National Reconnaissance Office.”
Full Story (Space News)